Опишите 2 или 3 картинку. , нужно

I would like to tell some words about picture number 3.In this picture I can see a classroom.It's Maths lesson.The boy is standing at the blackboard.He is doing sums.I think he is answering very well.

The boy is wearing a school uniform.It's a white shirt, black trousers and a vest.

I like this picture because I think,this lesson is very interesting.